Standards used

CDA

The HL7 Clinical Document Architecture (CDA) is an XML-based markup standard intended to specify the encoding, structure and semantics of clinical documents for exchange. CDA is part of the HL7 version 3 standard. CDA documents are persistent in nature. The CDA specifies that the content of the document consists of a mandatory textual part (which ensures human interpretation of the document contents) and optional structured parts (for software processing). The structured part relies on coding systems (such as from SNOMED and LOINC) to represent concepts.

IHE (Integrating the Healthcare Enterprise) Profiles describe specific solutions to integration problems across various categories or domains (such as IT Infrastructure or Patient Care Coordination) and the CDA Section Content Modules define the sections that may appear in a medical document.  The following IHE profiles we are proposing to use are:

MHD

The IHE  Mobile access to Health Documents profile provides a RESTful interface to Document Sharing including XDS.

 http://wiki.ihe.net/index.php?title=Mobile_access_to_Health_Documents_(MHD) defines interfaces for sending and retrieving documents. See http://www.ihe.net/uploadedFiles/Documents/ITI/IHE_ITI_Suppl_MHD.pdf for full details around this.

PIX

The Patient Identifier Cross Referencing (PIX) Integration Profile supports the cross-referencing of patient identifiers from multiple Patient Identifier domains.

http://wiki.ihe.net/index.php?title=Patient_Identifier_Cross_Referencing

PDQ

The Patient Demographics Query for HL7v3 (PDQv3) Integration Profile lets applications query a central patient information server and retrieve a patient’s demographic and visit information.

http://wiki.ihe.net/index.php?title=Patient_Demographics_Query_HL7_v3